Remove Gutenberg Buttons Block

This added to the functions.php allows the removal of specific Gutenberg blocks. function hide_default_blocks($allowed_block) { $blocks = WP_Block_Type_Registry::get_instance()->get_all_registered(); unset($blocks[‘core/buttons’]); return array_keys($blocks); } add_filter(‘allowed_block_types_all’, ‘hide_default_blocks’); Part of the issue is that it is core/buttons and not core/button but also the method of removal was incorrect.